*{margin:0;padding:0;}
.head{
  font-size:12px;
  padding:6px 0 0 10px;
}
#login_box{
  width:300px;
  height:150px;
  background:#eee;
  border:1px solid #ccc;
  position:absolute;
  left:50%;
  top:50%;
  margin-left:-150px;
  margin-top:-75px;
  display:none;
}
#login_box p{
  height:20px;
  border-bottom:1px solid #ccc;
  font-size:12px;
  padding:6px 0 0 5px;
  font-weight:bold;
}
#close{width:14px;
  height:14px;
  background:url(close.png) no-repeat;
  position:absolute;
  right:4px;
  top:6px;
  cursor: pointer;
}